Malicious PDF — malware analysis report

Static analysis result for SHA-256 27670a80b3b882a5…

MALICIOUS

PDF

46.5 KB Created: 2020-08-07 12:53:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c6cc81f00071fc5fefba3fd54101881 SHA-1: cdd4db2fe5afdb1f2e9f3e6be73e70e7e0a1bb22 SHA-256: 27670a80b3b882a52538764b21893963cf99cf2dbe6f4f12b7e416d6ddc8652c
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a document related to the 'Power of attorney act 1882'. The document also features a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt. The presence of a callback lure heuristic indicates a potential for social engineering to extract further information or credentials.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=power+of+attorney+act+1882+pdf+in+gujarati
    • http://files.casskdesigns.com/uploads/1/3/1/3/131381850/gazakupefazif.pdf
    • http://files.dlfinancial.org/uploads/1/3/0/7/130739570/nutijatoxazu_gazes_sojanipodumasi_kerapureluvak.pdf
    • http://files.ldartsstudio.com/uploads/1/3/1/0/131069819/6552535.pdf
    • https://cdn.shopify.com/s/files/1/0431/8799/4792/files/31005160890.pdf
    • https://cdn.shopify.com/s/files/1/0432/0450/9853/files/gazovojajefaviwor.pdf
    • https://cdn.shopify.com/s/files/1/0429/8620/9439/files/mimoponeverotoju.pdf
    • https://cdn.shopify.com/s/files/1/0435/2969/9482/files/22045426478.pdf
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/budismo_nitiren_daishonin.pdf
    • https://cdn.shopify.com/s/files/1/0427/9658/1020/files/23555792939.pdf
    • https://cdn.shopify.com/s/files/1/0439/2560/2472/files/99058244036.pdf
    • https://cdn.shopify.com/s/files/1/0450/3745/3470/files/online_sbi_net_banking_form.pdf
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/61909010408.pdf
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/22123976597.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18842325712.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007752.bin
e96aac7bade8657011d634f7da4082aa0c92ec56bd381a84db62bd8bdb8204da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7752 5760 bytes
font_01_sfnt_off00008b29.bin
d9c74f8f338af1bf5012302eb451253e9b757dc6082c8f8f7b25d70b22631246		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B29 9908 bytes

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